Mandy Moore feels "totally ready to have kids now"

She said: "I didn't know how to change a diaper. I had crew members showing me how to change a diaper. I'm terrible, but yes it has sort of activated that maternal side of me that I'm totally ready to have kids now."

Despite being more comfortable with the idea of motherhood thanks to her role in the show, Mandy admits she still has "no experience" with children and finds it strange when she has to act with babies for flashback scenes.

Mandy - who was previously married to singer/songwriter Ryan Adams - added: "I mean, we get to hold these newborn children, and I can't believe their parents were willing to hand over their babies to me. I'm like, 'Hi, I'm Mandy. I have absolutely no experience with small children,' and they're like, 'Here's my two-week-old baby.' "

And although Mandy might not have any experience being a mother, she admits she does have to keep an eye on the three young children - Lonnie Chavis, Mackenzie Hancsicsak, and Parker Bates - who play the young versions of her children Randall, Kate, and Kevin.

She told Conan O'Brien on his eponymously titled talk show 'Conan' on Wednesday (01.02.17): "I think it's a lot of their first jobs for most of them and any time there's a scene that requires them to eat, I have to remind them - Milo [Ventimiglia], who's my husband on the show - we're always like, 'Guys slow down because you guys don't realise you're committing yourself to eating that same amount for the entirety of the scene which can sometimes be a couple hours.' "